There are many ways to get back to your list of Friend Lists; one of the easiest ways is to remember the URL is simply facebook.
According to Facebook help center: "Off-Facebook activity is a summary of activity that businesses and organizations share with us about your interactions, such as visiting their apps or websites.
Click the circular Messenger icon in the top-right corner.
If you want Facebook to stop sharing your location with friends, head to the bottom-right menu icon, then tap Nearby Friends or maybe See More if it's not at the top.